Hello Steve, I realise the gauges.htm is not using the info.gif but boxover.js is definitely doing so and it causes an error in your server error log, as I found when I was checking my Cpanel Error Log for my server web space. Since gauges.htm uses the boxover script I guess that is why it is logged as the referer in the error log.
Putting that info.gif that Ray supplied into the by Cumulus root directory removed the error for me, but I guess it could be anything as long as it is called info.gif

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